Half-life period for a first order reaction is _____________ the initial concentration of the reactant?
Correct answer: B. Independent of
- A. Directly proportional to
- B. Independent of
- C. Inversely proportional to
- D. None of these
Explanation
For a first-order reaction, t₁/₂ = 0.693/k, which contains no initial concentration term. This independence of starting concentration is a characteristic distinction from zero- and second-order reactions.
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